Reply
 
Thread Tools Display Modes
 
Old 05-08-2005, 10:50 PM   #1
Mini-Skoolie
 
Join Date: Apr 2005
Location: Kansas
Posts: 37
Questions regarding a custom A/C installation (pics)

We are going to attempt to install some A/C units in our bus. We do NOT want to look into overhead units as we may try to put in a roof deck sometime in the future. We have purchased two small A/C units and we want to mount them in a way that will look decent on the outside and will not impact our space on the inside. We have come up with the idea of mounting them in a pair over one of the wheel wells in the following manner:







My drawing sucks and it certainly isn't to scale, but we have measured and there is more than enough room over the wheel well for the two units - there is even enough room if we have to put a space in between them if there is a "rib" when we start cutting.

1. We plan on putting a rectangular box made of plywood directly on the wheel well with "legs" running the length of each side to keep it on there.

2. We plan on making the box taller than the A/C units themselves, so as to leave airflow room. This will be sealed as best as possible on the inside, but open to air on the outside.

3. We will bolt the units down to the box.

4. The units are 7500 btu's each, which should be adequate.

5. When we cut the outside of the bus, we will try and use the cutout as a "door," adding hinges to protect the units from the elements when they are not being used.

We have decided to go over the wheel well because the box will be about end table height (there are couches on either side of the wheel well) and it would be a great use of underutilized space. It will also be great for cupholders for those sitting on the couches.

So as you can expect, I have a TON of questions. I would appreciate if people would answer any and all that they feel qualified to answer. Thanks in advance!

1. What is the best way to cut the metal? What ways will work that might be cheaper?

2. Is there a rib or any other structural metal rod running where we are going to cut? Like I said above, we are planning on seeing one in the middle and we plan to mount them around it.

3. Do I really need the "airflow" space above each unit?

4. Can you think of a better way to mount them?

Once again, thanks in advance!

OK, after seeing the other buses, I've decided to include a second option for your review:





Again, sorry for the drawings, they're the best I could do. This option would allow me to utilize the windows, which are obviously already cut. Any ideas or suggestions?

Thanks!
__________________
66 Chevy Skoolie
Used for Tailgating to Kansas State University football games!
The seats are out (except for two facing each other) and replaced with matching couches.
7000 watt generator powering 2 6500 btu A/C's
Rebuilt 350 puts the power down.
66ChevyTailgater is offline   Reply With Quote
Old 05-09-2005, 09:41 AM   #2
trx
Skoolie
 
trx's Avatar
 
Join Date: Feb 2004
Location: Elk River, MN
Posts: 105
Year: 1988
Coachwork: Bluebird
Chassis: Chevy C-60
Engine: 8.2L Turbo Detroit Diesel
Rated Cap: 77
Send a message via ICQ to trx
1. Cutting the metal probably depends on the tools you have available. On way is to make the initial cut with a 3" air cut off then use a reciprocating saw (Sawzall). It can be tricky to cut straight with a reciprocating saw if you are not careful. I'll let others speak up on other ways they have used.

2. Typically it's empty space. There's a verticle support between each window. The one over the wheel well probably doesn't do much since there's no floor to tie into.

3. You shouldn't if there are no vents there. You'll only need airflow where there are vents.

4. That's all personal preference. If you want a real challenge mount them under the bus and vent them up through the floor. You could even run ducting under the bus to have multiple floor vents. Of course it all depends on if the design of the air conditioner makes this feasible. It would involve a lot of creativity and work to pull it off. I don't think anyone has tried it before (maybe for good reason).

Chad
trx is offline   Reply With Quote
Old 05-09-2005, 02:35 PM   #3
Almost There
 
Join Date: Feb 2005
Location: Land of Oz
Posts: 75
Send a message via Yahoo to TravelingMan
Im not clear, are the units going to slide out when used? Just remember you can only be so wide on the highway not sure but think its 108 in.
__________________
"I'm a man of means by no means King of the road"
TravelingMan is offline   Reply With Quote
Old 05-09-2005, 02:53 PM   #4
Bus Crazy
 
Steve's Avatar
 
Join Date: Jul 2002
Location: Central Iowa
Posts: 1,838
Send a message via AIM to Steve
My ac is somewhat similar to yours.

Here you can see I replaced the window with inlet and exhaust vents for the ac unit.







There is plenty of room for the inlet air around the sides of the unit.




After the exterior was in place ducts were constructed so that there was a vent in for cool air and out for hot. You be amazed at how well this works and how much hot air is blown on you if you stand under the vent.

__________________
View my 1972 Ward: Topic from the Build : The Picture Gallery
View my 1986 Blue Bird: Topic from the Build : The Picture Gallery
View my 1960 GMC: Topic from the Build : The Picture Gallery
Steve is offline   Reply With Quote
Old 05-09-2005, 03:18 PM   #5
Almost There
 
Join Date: Feb 2005
Location: Land of Oz
Posts: 75
Send a message via Yahoo to TravelingMan
How well does one unit do at cooling the bus?
__________________
"I'm a man of means by no means King of the road"
TravelingMan is offline   Reply With Quote
Old 05-09-2005, 03:24 PM   #6
Bus Crazy
 
Steve's Avatar
 
Join Date: Jul 2002
Location: Central Iowa
Posts: 1,838
Send a message via AIM to Steve
Quote:
Originally Posted by TravelingMan
How well does one unit do at cooling the bus?
I have insulation over all of the windows and coated the roof with CoolSeal. Even then the little airconditioner I have cannot cool the entire bus down on a really hot day. I have a door between the living and sleeping areas, with the door closed it does work very well.

I imagine if I had two of these or one twice as big it would cool the bus down very well. I think the one I have installed is a 7,200 BTU unit. What I did want to point out is not to be afraid to mount a conventional unit inside of your bus, with the right duct work the heat exchanger will work just fine. If you do find you need to move more air around it an electric automobile radiator fan can be easily adapted to give you enough extra circulation.
__________________
View my 1972 Ward: Topic from the Build : The Picture Gallery
View my 1986 Blue Bird: Topic from the Build : The Picture Gallery
View my 1960 GMC: Topic from the Build : The Picture Gallery
Steve is offline   Reply With Quote
Old 05-09-2005, 08:00 PM   #7
Mini-Skoolie
 
Join Date: Apr 2005
Location: Kansas
Posts: 37
It will not be sliding...

Quote:
Originally Posted by TravelingMan
Im not clear, are the units going to slide out when used? Just remember you can only be so wide on the highway not sure but think its 108 in.
No, we're planning on having a swinging door that we'll open when they're in use. I suppose vents would be another option, but we hadn't thought of that.

Thanks.
__________________
66 Chevy Skoolie
Used for Tailgating to Kansas State University football games!
The seats are out (except for two facing each other) and replaced with matching couches.
7000 watt generator powering 2 6500 btu A/C's
Rebuilt 350 puts the power down.
66ChevyTailgater is offline   Reply With Quote
Old 05-09-2005, 08:05 PM   #8
Mini-Skoolie
 
Join Date: Apr 2005
Location: Kansas
Posts: 37
I like your in-window design.

How easy was that setup to do. The reason I'm asking is that it seems like it would be MUCH easier to do than to start cutting metal!

Does the relatively small opening the vent provides hurt your coooling perfomance at all?

Thanks!
__________________
66 Chevy Skoolie
Used for Tailgating to Kansas State University football games!
The seats are out (except for two facing each other) and replaced with matching couches.
7000 watt generator powering 2 6500 btu A/C's
Rebuilt 350 puts the power down.
66ChevyTailgater is offline   Reply With Quote
Old 05-10-2005, 01:12 PM   #9
Bus Crazy
 
Steve's Avatar
 
Join Date: Jul 2002
Location: Central Iowa
Posts: 1,838
Send a message via AIM to Steve
Well in the case of the small AC unit I have, I think the vents are sufficient in size. Just remember, the more and cooler the air you suck in the better your heat exchanger will work. The vents for the intake and exhaust on my insulation are insulated and sealed around the edges so there isn't any heat leakage.
__________________
View my 1972 Ward: Topic from the Build : The Picture Gallery
View my 1986 Blue Bird: Topic from the Build : The Picture Gallery
View my 1960 GMC: Topic from the Build : The Picture Gallery
Steve is offline   Reply With Quote
Old 05-10-2005, 01:30 PM   #10
Skoolie
 
dammitAndy's Avatar
 
Join Date: Feb 2005
Location: Salt Lake City, UT
Posts: 138
Year: 1989
Coachwork: Wayne
Chassis: Ford
Engine: 370
Rated Cap: 44
Nice Steve!

I was going to reply to this thread earlier but waited to see how it developed. I was originally going to mount a window AC unit on the outside of my bus too. But now that I see how you mounted it inside, its my new project

So there is plenty of airflow to the AC unit in that box you mounted it in??
__________________
'89 Ford 370-2V Wayne - Sold :(
http://www.dammitandy.com/bus

Plotting the next project now. Looking for a clean diesel pusher with low rust/miles. Identical plans with plumming and biodiesel added :)
dammitAndy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Has anyone made a custom shower pan for their bus? jazty Conversion General Discussions 12 10-13-2017 03:04 AM
Breaker Box Installation Questions soused moose Conversion General Discussions 17 09-05-2017 10:49 AM
School bus to Custom Van MUoffroader Conversion General Discussions 3 09-09-2013 06:43 AM
Here you go PDBreske......my safari pics..lots of pics bansil Everything Else | General Skoolie Discussions 2 09-05-2012 05:17 PM
Looking for a custom horn thewilliamsclan Classifieds | Buy, Sell, Swap 6 11-12-2008 05:57 AM

» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 08:28 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.